Protecting my assets… marriage?

I just saw another post about protecting your assets and it’s got me thinking… I (34f) have a house in my name, still working on paying it off, the loan is in my name only too. I have no retirement as I’ve worked for myself most my adult life but haven’t made enough for any savings. I’m in a long term committed relationship with my life long best friend (35m) who I trust with my life. We were never planning to get legally married because we don’t want children so didn’t see a point in getting the government involved. I’m now starting to consider if it would be in my best interest for us to get legally married in case anything were to happen with womens rights slowly getting chipped away at. Any thoughts or advice? Edit: I know there are pros and cons to both, I’m just not sure of what they all are